diff --git a/runtime/doc/if_mzsch.txt b/runtime/doc/if_mzsch.txt
index f118b17..9d27683 100644
--- a/runtime/doc/if_mzsch.txt
+++ b/runtime/doc/if_mzsch.txt
@@ -312,4 +312,4 @@
   raco pkg install cext-lib         # raco ctool command
 <
 ======================================================================
-  vim:tw=78:ts=8:sts=4:ft=help:norl:
+  vim:tw=78:ts=8:noet:sts=4:ft=help:norl: